Electric-locomotive cable-reeling mechanism.



N. D.LEv|N. ELECTRIC LOCOMOTIVE CABLE REELING MECHANISM.,

APPLICATION FILED JULY 22 191|.

LQQYQL [NVENTOR l Allam@ M2M if. "T'Wf/M Wim/5555 N. D. LEVIN.

ELECTRIC LocoMoTlvE CABLE REEUNG MECHANISM. APPLICATION FILED JULY215.1911.

L 247942 l Patented Nov. 20, 1917.

3 SHEETS-SHEET 2.

Jwl Aflamey N. D. LEVIN.

ELECTRIC LoCoMoTlvE CABLE REELINC MECHANISM.

APPLICATION FILED JULY 22|I91I.

hmmm,

3 SHEETS-SHEET s.

Patented Nov. 20, 1917.

@uve/nto@ @Hoz/mm1 wiftmeooao unirti sans anni ibn.

NILS DAVID LEVIN, 0F `COLUIVIBITS, OHIO, ASSIGNOR TO THE JEFFREYMANUFAC- TUBING COMPANY, A CORPORATION OF OHIO.

nLncrnic-Locoivio'rivn CABLE-manine MiicHAivIsivi.

To all whom t may concern.'

Be it known that I, Nus D. LnviN, a citizen of the United States,residing at Columbus, in the county of Franklin and State of Ohio, haveinvented certain new and useful Improvements in Electric-LocomotiveCable-Keeling Mechanism, of which the following is a'specification,reference being had therein to the accompanying drawm Y This inventionrelates to electric locomotives of the type provided with reels forwinding and unwinding electric conductor cables.' Locomotives of thisclass are now well known and are especially adapted for use in coal andsimilar mines to enter side entries and rooms which are not providedwith trolley wires or other permanent conductors. In operation theconductor cable is secured to a trolley wire or other conductor, andcurrent is supplied through the cable to cause the locomotive to advanceinto a side entry or room. As the locomotive moves forward, the cable isautomatically unwound from the reel. When the locomo tive returns,current is still supplied through the cable and the cable isautomatically rewound upon the reel.

The object of this invention is to provide improved actuating andcontrolling devices for the reel. With this object in view, theinvention consists in the arrangement of parts and in the structuralfeatures which are fully set forth inthe following specification andclaims.

In the accompanying drawings which forma part of the specification' Ihave shown those embodiments of my `invention which I now considerpreferable, but it will be understood that modifications and changes maybe made without departing from the spirit of my invention.

Of the drawings,

Figure lis a side elevation of a locomotive embodying one form of myinvention.

Fig. 2 is a plan view of the locomotive shown in Fig. l.

Fig. u3 is an enlarged side elevation of the reel and actuating andcontrolling mechanism shown in Figs. 1 and 2.

Fig. 4 is a plan view of the construction shown in Fig. 3. l

Fig. 5 is a side elevation of a locomotive embodying a modied form of my`invention.

Specification of Letters Patent.

Application led July 22, 1911.

Patented nov. ao, iai a.

Serial No. 639,931.

Fig. 6 is a plan view of the locomotive shown in Fig. 5.

Referring to the drawings, 1 represents, as a whole7 a locomotive whichmay be of any of the ordinary forms. The locomotive shown is providedwith the usual axles and track wheels and is driven by motors 2, 2. Atone end of the locomotive are the `usual controlling devices such as thebrake wheel 3 and the controller 4. At the other end of the locomotivethere is located the cable reel mechanism which will now be described indetail.

`Referring especially to the constructions in Figs. 1 to 4, 5 representsa main reel frame which is bolted,` or otherwise secured, to the mainlocomotive frame. 6 represents the reel which comprises a center 7preferably made up of wooden disks and metallic side flanges 8,8. Theparts ofthe reel are held together by means of the through bolts 9, 9.The reel center is recessed at its ends` and in the recesses are securedhubs 10 and 11 which are secured to short stub shafts l2 and 13.A `Oneof the stub shafts, as for in stance, 12, is mounted in a metallicbearing 14 on the frame 5; the other shaft 13 is mounted in a bearing 15which is supported on the frame 5 by means of a block 16 of insulatingmaterial such as wood.

17 is a bracket extending horizontally from the frame 5. A Mounted uponthis bracket is a motor 18. A controller 18 is provided for this motor.The motor is pro vided with a horizontal shaft 19 carrying a pinion 20.Mounted above the motor, pref erably upon the frame thereof, is ahorizontal shaft 21 and a driving gear 22 which meshes with the pinion20. Also secured to the shaft 21 is a sheave 23 adapted to receive andengage with an endless rope 24. This rope also engages with a sheave 25secured to the end of one of the beforementioned stub shafts, as forinstance 12.

Mounted in the'frame 5 below and at one side of the reel is a shaft 26which is preferably stationary. p Pivoted near thel end of the shaftwhich is adjacent the sheave 25 is a lever 27 which extends diagonallyupward and which carries at its upper end a pulley 28 which is arrangedto engage the rope 24 to tighten it. Also pivoted upon the shaft 26 at apoint adjacent the lever 27 is an upstanding arm or lever 29. At theupper end of the arin 29 is a brake shoe 30 which is arranged to engagethe periphery of the sheave 25 when the arm 29 is moved. The arm 29 maybe moved by means of a lug 31'1on' the lever 27 which engages withascrew 32 which extends through a threaded aperture in a lateralprojection on'the arm '29.'-By adjusting the screwT the position of thearin 29 relative to the lever 27 may be regulated.

upward extending lever 37 to the upper end of which is pivoted ayoke`38`.V The yoke 38 is provided with a threaded aperture adaptedtoreceive a threaded rod 39.l The rod I39extends the length ofthelocomotive and is provided at the operators end with a hand wheel 40, bmeans of which it can be moved longitudinally to cause thefirope tobe'tightened or the brake to be applied.

Mountedin bearings on brackets 41, 41 on the frame 5 is al guidemechanism shaft 42V which is double threaded as indicated lin Fig. 4.This shaft 42 is driven from the reel by means of a chain 43 whichpasses overthe sprocket wheels 44 and 45. Mountedin a suitable guidewaywhich extends parallel to the shaft 42 is a carriage 46 which isprovided to engage with the double threads ofthe shaft 42 and to bemoved by them backward and forward along the shaft. The carriage 46isprovided with guide pulieys47,47and 48,48. i i

The cable is led in between the guide pulleys on the carriage 46, and ifprovided with two" conductor wires," one of these isvconnected with thehub 10 and the other with the hub 11. From the hub 10 electricalconnectionis established through the shaft 12 and the bearing 14 to themetallic parts of the locomotive and to the ground. From the hub 11connection is established through the brush 49 to the motors 2,2 and 18.

Then it is desiredv to operatethe 4locomotive shown in Figs.\1 to 4 andto make use of the ycable reel mechanism, vthe freee'nd ofthe cable issecured to a conductor and the locomotive is caused to` move inthe usualmanner away from the conductor. tiring this movement the cable isunwound from'v the reel. By meansof the 'hand wheel 40 and the rod 39,vthe lever 37 and associa'ted parts are maintained in the positionshownby dotted linesin Fig. 3', The unwinding ofv the cable 'inay'becontrolled b'y' vadju sting the retarding force 'of the b'r'akeshoeO to'suit the conditions. During unwinding it will be understood that therpe'24i's`s1aek. Itis, therefore, immaterial whether or not the motor 18be in operation during unwinding. K

` VWhen* the locomotiveis Ato Vreturn and it is desired torewind thecable, the lever 37 and` associated parts are moved by means of the handwheel 40 and the rod 39 to the posifOn shown by full lines in Fig. 3;the result beingithat the brake shoe 30 is moved out of contact` withthe sheave 25 and that the pulley 28 is lmoved into position to tightenthe rope v24. As a result' ofthe tightening of the rope 24,powerfislftransmitted through it from the motor 18 to the reel 6. flhepower connection `afforded ,by` the rope is a yielding one, andas aresult excessive tension on the` cable is `made impossible. AsV soon as*the cable tension reaches a definite amount the ropewll slip on one orthe other of the sheaves and pre.- vent further tensioning of the cable.amount' of cable tensionv may Ybe regulated The byadjustingthe positionofthe tightener.v

pulley 28. It will, of course,` be understood thatY during winding, thecable. sguided back and forthalong the reel by means of thereciprocatingcarriage 46. v

Inl Figs. 5 and 6 I have shown va modified form ofmy invention `whichdiffers from the form shown in Figs. 1 tov 4 in that, power forVdriving' the reel is vderived, from the main locomotive motors insteadofv from a separate 'reel motor. .v The construction is similar t0 thatI` have described with/the exception, that the 'gear 22 is mounted on astud on the casingV of oneofthemain mor tors. `It derives fits powerfrom,engtgmentwith an idler gear 2,2a'which meshes with a pinion 22b on themotorshaft. The motor v18 is omitted together with its controller 18a,otherwise the` construction lis Videntical with that before described,Vand further description, -therefore, can be omitted. Y A

I am aware that Vrope drives for. cable reels have been heretoforeproposed, and `I do not, therefore, broadly claim such Va drive as apart of my present invention.; f jIn earlier devices, use,y has beenmade lof the rope itself to provide a braking force 4to resist'the trotation of the reel inv `the tunwndingv dii rection. y Thishas resulted'in eXCeSsive wear upon theJ rope and by, my present; invention -I haveprovided a simple'and eie'ctiveme'ans out fixed limit into engagementwith the reel sheave to increase the retardation thereof indefinitely.

2. In a cable reeling mechanism for electric mine locomotives, thecombination of a reel on the locomotive frame, a cable connected theretoat one end and adapted to be connected at the other end to a stationaryconductor, a power shaft mounted closely adjacent to the reel, alinedrope sheaves on the shaft and the reel respectively, a relatively shortfrictionally acting rope on said sheaves, a rope tightener, a frictionbrake adapted to directly engage the reel sheaves, means for applyingmanual power to press the brake without fixed limit against the reelsheave to optionally increase to any desired extent the retarding of theunwinding movement of the reel and simultaneously moving the tighteneraway from the rope, and means for holding the brake stationary aftermanual adjustment.

In testimony whereof I atiX my signature, in presence of two witnesses.

NILS DAVID LEVIN. Witnesses:

DUDLEY T. FISHER, W. K. LIGGETT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

